<template>
	<view v-if="goods_info.goods_name">
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item,i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
		 <!-- 商品价格 -->
		 <view class="price">￥{{goods_info.goods_price}}</view>
		 <!-- 商品信息主体区域 -->
		 <view class="goods-info-body">
			 <!-- 商品名称 -->
			 <view class="goods-name">{{goods_info.goods_name}}</view>
			 <!-- 收藏 -->
			 <view class="favi">
				 <uni-icons type="star" size="19px"></uni-icons>
				 <text>收藏</text>
			 </view>
		 </view>
		 <!-- 运费 -->
		 <view class="yf">运费：免运费</view>
		</view>
		<!-- 渲染div节点之类的图片 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<!-- 底部购买按钮 -->
		<view class="goods-nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @buttonClick="buttonClick" @click="onClick"/>
		</view>
		
	</view>
</template>

<script>
	import {mapState,mapMutations,mapGetters} from 'vuex'
	export default {
		// 计算属性节点
		computed:{
			...mapState('m_cart',['cart']),
			// 把m_cart模块中的名称为total的getter映射到当前页面中使用
			...mapGetters('m_cart',['total'])
		},
		watch:{
			// 监听total值的变化,通过第一个形参得到变化后的新值
			// total(newNav){
			// 	// 通过数组的find()方法,找到购物车按钮的配置对象
			// const findResult=	this.options.find((x)=> x.text==='购物车')
			// 	if(findResult){
			// 		// 动态为购物车按钮的info属性赋值
			// 		findResult.info=newNav
			// 	}
			// },
			total:{
			handler(newNav){
					// 通过数组的find()方法,找到购物车按钮的配置对象
				const findResult=	this.options.find((x)=> x.text==='购物车')
					if(findResult){
						// 动态为购物车按钮的info属性赋值
						findResult.info=newNav
					}
			},
			// immediate属性用来声明此监听器,是否在页面初次加载后立即使用
			immediate:true
		},
		},
		data() {
			return {
				// 商品详情对象
				goods_info:{},
				 options: [{
				          icon: 'shop',
				          text: '店铺',
				          infoBackgroundColor: '#007aff',
				          infoColor: "red"
				        }, {
				          icon: 'cart',
				          text: '购物车',
				          info: 0
				        }],
				        buttonGroup: [{
				            text: '加入购物车',
				            backgroundColor: '#ff0000',
				            color: '#fff'
				          },
				          {
				            text: '立即购买',
				            backgroundColor: '#ffa200',
				            color: '#fff'
				          }
				        ]
			};
		},
		onLoad(options) {
			// 获取商品id值
			const goods_id=options.goods_id
			// 调用请求商品详细终端的方法
			this.getGoodsDetail(goods_id)
		},
		methods:{
			...mapMutations('m_cart',['addToCart']),
		async	getGoodsDetail(goods_id){
			const {data:res}=await	uni.$http.get('/api/public/v1/goods/detail',{goods_id})
			// console.log('ssss',res)
			if(res.meta.status!==200) return uni.$showMsg()
			
			// 正则替换,让详情页图片没有空白隙,第二个解决了ios可能显示不出图片的bug
			res.message.goods_introduce =	res.message.goods_introduce.replace(/<img /g, '<img style="dispaly:block;"').replace(/webp/g,'jpg')
			
			this.goods_info=res.message
			},
			// 点击图片预览图id
			preview(i){
				uni.previewImage({
					// 预览时,默认显示图片的索引
					current:i,
					urls:this.goods_info.pics.map(x=>x.pics_big)
				})
			},
			onClick(e){
				if(e.content.text==='购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick(e){
				// console.log(e)
				if(e.content.text==='加入购物车'){
					// 组织商品的信息对象
					// {goods_id,goods_name,goods_price,goods_count,goods_small_logo,goods_state}
					const goods={
						goods_id:this.goods_info.goods_id,
						goods_name:this.goods_info.goods_name,
						goods_price:this.goods_info.goods_price,
						goods_count:1,
						goods_small_logo:this.goods_info.goods_small_logo,
						goods_state:true
					}
					// 调用addToCart方法
					this.addToCart(goods)
				}
			}
		}
	}
</script>

<style lang="scss">
swiper{
	height: 750rpx;
	image{
		width: 100%;
		height: 100%;
	}
}
.goods-info-box{
	padding: 10px;
	padding-right: 0px;
	.price{
		color: red;
		font-size: 19px;
		margin: 10px 0;
	}
	.goods-info-body{
		display: flex;
		justify-content: space-between;
		.goods-name{
			font-size: 13px;
			margin-right: 10px;
		}
		.favi{
			width: 120px;
			font-size: 12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf{
		font-size:12px ;
		color: gray;
		margin: 10px 0;
	}
}
.goods-nav{
	// display: fixed;
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	
}
</style>
